update docs

instructor/patch.py

@@ -155,6 +155,47 @@ original_chatcompletion_async = openai.ChatCompletion.acreate
 
 
 def patch():
+    """
+    Patch the `openai.ChatCompletion.create` and `openai.ChatCompletion.acreate` methods to support the `response_model` parameter.
+
+    ## Usage
+
+    ```python
+    from pydantic import BaseModel, Field
+    import instructor
+
+    instructor.patch()
+
+    class User(BaseModel):
+        name: str = Field(description="The name of the person")
+        age: int = Field(description="The age of the person")
+        role: str = Field(description="The role of the person")
+
+    user = openai.ChatCompletion.create(
+        model="gpt-3.5-turbo",
+        messages=[
+            {
+                "role": "user",
+                "content": "Jason is 20 years old",
+            },
+        ],
+        response_model=User,
+    )
+
+    print(user.model_dump())
+    ```
+
+    ## Result
+    ```
+    {
+        "name": "Jason Liu",
+        "age": 20,
+        "role": "student",
+    }
+    ```
+
+
+    """
     openai.ChatCompletion.create = wrap_chatcompletion(original_chatcompletion)
     openai.ChatCompletion.acreate = wrap_chatcompletion(original_chatcompletion_async)